CN219802462U - Operation camera device - Google Patents
Operation camera device Download PDFInfo
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- CN219802462U CN219802462U CN202320571785.2U CN202320571785U CN219802462U CN 219802462 U CN219802462 U CN 219802462U CN 202320571785 U CN202320571785 U CN 202320571785U CN 219802462 U CN219802462 U CN 219802462U
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- barrel
- lens barrel
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- main lens
- sleeve
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- 238000003384 imaging method Methods 0.000 claims abstract description 61
- 238000007789 sealing Methods 0.000 abstract description 27
- 238000003756 stirring Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract 1
- 230000000670 limiting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Lens Barrels (AREA)
Abstract
A surgical imaging apparatus, comprising: the lens barrel comprises a shell, a main lens barrel, a movable lens barrel and an imaging element, wherein the shell is provided with a lens barrel mounting opening; the main lens barrel is installed in the lens barrel installation opening in a circumferential rotation manner; the moving lens barrel is at least partially installed in the main lens barrel; the imaging element is installed in the shell and is used for imaging a shot object; the moving lens barrel is driven to move in the axial direction of the main lens barrel by rotating the main lens barrel to achieve focusing of a subject on an imaging element. Because the operation port is not required to be arranged on the shell for operating the focusing wheel, the opening on the shell is reduced, and the sealing and waterproof performances of the shell are improved. In addition, the scheme of the utility model can directly stir the end part of the main lens barrel or stir the focusing wheel arranged at the end part of the main lens barrel, and can simultaneously operate by using two or more fingers, so that the operation is more convenient, and a larger driving force can be applied to the main lens barrel.
Description
Technical Field
The utility model relates to the technical field of surgical auxiliary equipment, in particular to a surgical imaging device.
Background
The camera handle is medical imaging equipment, can record a surgical process, can realize navigation positioning on an image for surgery through a plurality of additional functions, and gradually becomes an important surgical auxiliary equipment.
In order to make the imaged object clear, adjustments to the lens system are required to achieve focus. In order to realize focusing, an operation opening is formed in the shell for the focusing hand wheel, so that the focusing hand wheel is at least partially exposed out of the shell through the operation opening, and the focusing hand wheel is shifted when focusing is needed. Because the focusing hand wheel needs to rotate during focusing, a gap between the focusing hand wheel and an operation port cannot be well sealed, and a great obstacle is caused for the waterproof performance of the whole equipment. The addition of an additional spacer for protection of the camera handle is required for surgical safety and protection of the device, which undoubtedly makes surgical preparation more cumbersome and leads to increased consumable costs. Another solution is to use a camera handle for focusing by an electric mechanism, which requires hiding the focusing wheel and the motor in the housing, and this would necessarily result in a bulky and complex internal structure and an increase in equipment cost.
Disclosure of Invention
The utility model aims to provide an operation camera device which aims to solve the problem that equipment waterproof and sealing performance are reduced due to the fact that an operation port is arranged in a shell.
To achieve the above object, an embodiment of the present utility model provides a surgical imaging apparatus including:
a housing provided with a barrel mounting opening;
a main barrel mounted in the barrel mounting opening so as to be circumferentially rotatable;
a moving barrel mounted at least partially within the main barrel;
an imaging element mounted within the housing, the imaging element for imaging of a subject;
the moving lens barrel is driven to move along the axial direction of the main lens barrel by rotating the main lens barrel to realize focusing of a subject on an imaging element,
a pin is fixed on the wall of the moving barrel, and a straight groove which is parallel to the axial direction of the main barrel and fixed relative to the main barrel is arranged in the operation imaging device corresponding to the pin, and the pin penetrates out of the straight groove, so that the moving barrel is prevented from rotating relative to the main barrel.
The surgical camera device can be further improved in that a focusing wheel is arranged at one end of the main lens barrel, which is close to the lens barrel mounting opening, and the main lens barrel is driven to rotate by the focusing wheel.
The surgical camera device can be further improved in that a sleeve is fixed in the shell, and a spiral groove extending along the axial direction of the main lens is formed in the inner wall of the sleeve; the main lens barrel is arranged in the sleeve, and a straight groove parallel to the axial direction of the main lens barrel is arranged on the wall of the main lens barrel; the pin penetrates out of the straight groove of the main lens barrel.
The surgical camera device can be further improved in that the inner wall of the shell is provided with a spiral groove extending along the axial direction of the main lens; the main lens barrel is characterized in that a straight groove parallel to the axial direction of the main lens barrel is formed in the wall of the main lens barrel, and the pin penetrates out of the straight groove of the main lens barrel.
The surgical camera device can be further improved in that a sleeve is fixed in the shell, and a straight groove parallel to the axial direction of the main lens barrel is formed in the inner wall of the sleeve; the main lens barrel is arranged in the sleeve, and a spiral groove extending along the axial direction of the main lens barrel is formed in the wall of the main lens barrel; the pin penetrates out of the spiral groove of the main lens barrel and is inserted into the straight groove. According to the above technical scheme of the present utility model, compared with the scheme in which the spiral groove is provided on the inner wall of the sleeve, the moving barrel of the present embodiment performs only a linear motion in the axial direction of the main barrel when the main barrel rotates.
The surgical imaging device of the present utility model can be further improved by providing a first seal ring between the sleeve and the main barrel.
The surgical camera device can be further improved in that the focusing wheel comprises a disc body and a convex ring vertically connected to one side of the disc body, the convex ring can be inserted into the sleeve along with the main lens barrel part, and a second sealing ring is arranged between the convex ring of the focusing wheel and the sleeve.
The surgical camera device can be further improved in that the inner wall of the shell is provided with a straight groove parallel to the axial direction of the main lens barrel; the cylinder wall of the main lens cone is provided with a spiral groove extending along the axial direction of the main lens cone; the pin penetrates out of the spiral groove of the main lens barrel and is inserted into the straight groove. Compared with the scheme that the spiral groove is arranged on the inner wall of the shell, the moving lens barrel of the embodiment only performs linear motion along the axial direction of the main lens barrel when the main lens barrel rotates.
The surgical imaging device of the present utility model can be further improved by providing a first seal ring between the housing and the main barrel.
The surgical camera device can be further improved in that the focusing wheel comprises a disc body and a convex ring vertically connected to one side of the disc body, the convex ring can be inserted into the shell along with the main lens barrel part, and a second sealing ring is arranged between the convex ring of the focusing wheel and the shell.
According to the surgical imaging device disclosed by the embodiment of the utility model, the main lens barrel is directly stirred at the position, extending out of the mounting opening of the lens barrel, of the main lens barrel or the focusing wheel is stirred to drive the main lens barrel to rotate, and the main lens barrel and the moving lens barrel are matched to drive the moving lens barrel so as to realize focusing. Because the part for poking the main lens barrel is the end part of the main lens barrel or the focusing wheel connected with the end part of the main lens barrel, an operation port is not required to be arranged on the shell for installing and operating the focusing wheel. On the one hand, the structure reduces the opening on the shell, and improves the sealing and waterproof performances of the shell. On the other hand, the scheme of the utility model can directly stir the end part of the main lens barrel or stir the focusing wheel arranged at the end part of the main lens barrel, and can simultaneously operate by using two or more fingers, so that the operation is more convenient, and a larger driving force can be applied to the main lens barrel.
Drawings
In order to more clearly illustrate the present utility model, the following description and the accompanying drawings of the present utility model will be given. It should be apparent that the figures in the following description merely illustrate certain aspects of some exemplary embodiments of the present utility model, and that other figures may be obtained from these figures by one of ordinary skill in the art without undue effort.
Fig. 1 is a perspective view of a surgical imaging device according to a first embodiment of the present utility model;
fig. 2 is an internal schematic view of a surgical imaging device according to a first embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a surgical camera device according to a first embodiment of the present utility model;
FIG. 4 is an exploded view of a main barrel, a focusing wheel and a sleeve according to a first embodiment of the present utility model;
FIG. 5 is an exploded view of a main barrel, a focusing wheel and a sleeve according to a second embodiment of the present utility model;
FIG. 6 is a schematic view of a sleeve according to a second embodiment of the present utility model;
FIG. 7 is a schematic view of a main lens barrel according to a second embodiment of the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
10. a housing;
20. the main lens barrel, 21, the matching platform, 22 and the main lens barrel fixing nut;
30. moving the lens barrel 31 and the pin;
40. an imaging element;
50. focusing wheel, 51, focusing wheel fixing nut, 52 and round hole;
60. a wire;
70. a sleeve;
80. a straight groove;
90. a spiral groove;
101. the first sealing ring, 102, the second sealing ring, 103 and the third sealing ring.
Detailed Description
Various exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, numerical expressions and values, etc. set forth in these embodiments are to be construed as illustrative only and not as limiting unless otherwise stated.
The use of the terms "comprising" or "including" and the like in this disclosure means that elements preceding the term encompass the elements recited after the term, and does not exclude the possibility of also encompassing other elements.
All terms (including technical or scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Parameters of, and interrelationships between, components, and control circuitry for, components, specific models of components, etc., which are not described in detail in this section, can be considered as techniques, methods, and apparatus known to one of ordinary skill in the relevant art, but are considered as part of the specification where appropriate.
An embodiment of the present utility model provides a surgical imaging device including:
the housing 10 may be designed according to surgical or gripping needs, for example, to be a cylindrical structure for ease of gripping. The housing 10 is provided with a barrel mounting opening for mounting the barrel. In the embodiment shown in fig. 1, the main body of the housing has a cylindrical structure, one end of the housing is provided with a lens barrel mounting opening, and the other end is designed as a frustum structure with a smaller diameter size, and the lead 60 passes through the frustum structure.
A main barrel 20 to which a lens or a lens group for imaging a subject is attached, the main barrel 20 being attached to a barrel attachment opening so as to be rotatable in a circumferential direction; for example, a holder is provided in the housing, and the main barrel is inserted into the holder to effect the mounting of the main barrel and the housing. Of course, the main barrel may be mounted in the housing so as to be circumferentially rotatable by a bearing. In a specific embodiment as shown in fig. 4, a baffle ring is arranged at one end of the main lens barrel far away from the shot object, the diameter of the baffle ring is larger than the inner diameter of the sleeve, and a thread structure corresponding to the focusing wheel fixing nut and the main lens barrel fixing nut 22 respectively is arranged at one end of the main lens barrel near the shot object; in assembling, first, the end of the main barrel provided with the screw structure is inserted into the sleeve and locked by the main barrel fixing nut 22, and then the focusing wheel is mounted at the end of the main barrel close to the object and locked by the focusing wheel fixing nut 51.
An imaging element 40, the imaging element 40 being mounted in the housing 10, the imaging element 40 being for imaging a subject; typically, the imaging element is disposed on a side of the main barrel remote from the subject.
A moving barrel 30, the moving barrel 30 being at least partially installed within the main barrel 20; the movable lens barrel is internally provided with a lens or a lens group for imaging and focusing a shot object. The moving cylinder 30 is driven to move in the axial direction of the main cylinder 20 by rotating the main cylinder 20 to achieve focusing of the subject on the imaging element 40. In one embodiment, the end of the main lens barrel, which is close to the lens barrel mounting opening, extends out of the lens barrel mounting opening, and the extending part of the main lens barrel can be conveniently arranged to be in a poking structure, for example, the diameter of the extending part of the main lens barrel is designed to be larger than the diameter of other parts of the main lens barrel, and more preferably, the diameter of the extending part of the main lens barrel is designed to be slightly larger than the diameter of the shell, so that the end part of the main lens barrel can be conveniently poked to drive the main lens barrel to rotate. In another embodiment, a focusing wheel 50 is mounted at one end of the main lens barrel 20 near the lens barrel mounting opening, a circular hole 52 is provided in the middle of the focusing wheel, the position of the circular hole is opposite to the position of the lens mounted on the main lens barrel, and the diameter of the circular hole is greater than or equal to the diameter of the lens, so that light can smoothly enter the main lens barrel. The main barrel 20 is rotated by the focusing wheel 50. The diameter of the focusing wheel is preferably slightly larger than that of the shell, so that the end part of the main lens barrel can be conveniently shifted to drive the main lens barrel to rotate. In the preferred embodiment shown in fig. 1, the outer end surfaces of the focusing wheel parallel to the axial direction are designed to be in a concave-convex staggered structure, so that sliding is prevented when the focusing wheel is shifted. There are various connection modes of the focusing wheel and the main lens barrel, for example, the focusing wheel and the main lens barrel can be connected in a threaded mode. Or according to the embodiment shown in fig. 4, the outer wall of one end of the main lens barrel is provided with the matching platform 21, the position of the round hole 52 of the focusing wheel is provided with the matching part corresponding to the round hole, and when the focusing wheel is inserted into the main lens barrel, sliding between the focusing wheel and the main lens barrel can be avoided. The focusing wheel can be connected with the main lens barrel through a focusing wheel fixing nut 51 with an annular structure, specifically, an external thread is arranged at one end of the main lens barrel, and the focusing wheel is locked at one end of the main lens barrel through a focusing wheel fixing nut (with an internal thread) after being sleeved into one end of the main lens barrel, so that the focusing wheel is fixed.
According to the surgical imaging device disclosed by the embodiment of the utility model, the main lens barrel is directly stirred at the position, extending out of the mounting opening of the lens barrel, of the main lens barrel or the focusing wheel is stirred to drive the main lens barrel to rotate, and the main lens barrel and the moving lens barrel are matched to drive the moving lens barrel so as to realize focusing. Because the part for poking the main lens barrel is the end part of the main lens barrel or the focusing wheel connected with the end part of the main lens barrel, an operation port is not required to be arranged on the shell for installing and operating the focusing wheel. On the one hand, the structure reduces the opening on the shell, and improves the sealing and waterproof performances of the shell. On the other hand, in the scheme that the operating port is formed in the shell for the focusing hand wheel, only part of the focusing wheel is exposed, and the focusing wheel can be stirred only by one finger, so that larger driving force is difficult to apply during operation. The scheme of the utility model can directly stir the end part of the main lens barrel or stir the focusing wheel arranged at the end part of the main lens barrel, and can simultaneously operate by using two or more fingers, so that the operation is more convenient, and a larger driving force can be applied to the main lens barrel.
The driving of the moving barrel by the main barrel may be achieved in a first embodiment, the surgical imaging apparatus includes: a housing 10, a main barrel 20, an imaging element 40, a moving barrel 30, and a sleeve 70; the housing 10 is provided with a lens barrel mounting opening for mounting the lens barrel; the main barrel is mounted with a lens or a lens group for imaging a subject, and the main barrel 20 is mounted in the barrel mounting opening so as to be rotatable in the circumferential direction; an imaging element 40 is mounted in the housing 10, the imaging element 40 being for imaging of a subject; the moving barrel 30 is at least partially installed in the main barrel 20; the moving cylinder 30 is driven to move in the axial direction of the main cylinder 20 by rotating the main cylinder 20 to achieve focusing of the subject on the imaging element 40. A sleeve 70 is fixed in the shell 10, the main lens barrel 20 is arranged in the sleeve 70, and one of the inner wall of the sleeve 70 or the main lens barrel 20 is provided with a spiral groove 90 extending along the axial direction of the main lens barrel 20; the other is provided with a straight groove 80 parallel to the axial direction of the main lens barrel 20; the pin 31 is fixed on the wall of the moving lens barrel 30, and the pin 31 is driven by the spiral groove to move linearly along the straight groove 80 when the main lens barrel rotates, so that focusing is realized.
The spiral groove is arranged on the inner wall of the sleeve: as shown in fig. 2-4, a sleeve 70 is fixed in the casing 10, the main lens barrel 20 is arranged in the sleeve 70, a spiral groove 90 extending along the axial direction of the main lens barrel 20 is arranged on the inner wall of the sleeve 70, and the spiral groove can penetrate through the inner wall of the sleeve or be of a set depth (the depth is smaller than the wall thickness of the sleeve), and the length of the spiral groove along the axial direction of the main lens barrel is more than or equal to the adjustment distance of the movable lens barrel; the wall of the main lens barrel 20 is provided with a straight groove 80 parallel to the axial direction of the main lens barrel 20, the straight groove penetrates through the wall of the main lens barrel, and the length of the straight groove is required to be more than or equal to the adjustment distance required by focusing of the moving lens barrel (for example, the moving lens barrel can move 1 cm in the axial direction of the main lens barrel to realize focusing, and then the length of the straight groove is required to be more than or equal to 1 cm to avoid that the actual moving range of the moving lens barrel is smaller than the adjustment distance required by focusing); a pin 31 is fixed to the wall of the moving barrel 30, and the pin 31 extends out of the straight groove 80 of the main barrel 20 and is inserted into the spiral groove 90. In the above embodiment of the present utility model, the pin and the moving barrel are driven to rotate by the main barrel by directly stirring the part of the main barrel extending out of the barrel mounting opening or by stirring the focusing wheel connected with the main barrel, and the pin can perform different linear movements (far from or near to one end of the main barrel near to the subject) according to different rotation directions of the main barrel due to the guiding action of the sleeve spiral groove on the pin due to the limiting action of the straight groove, thereby realizing focusing. In the present embodiment, the moving barrel is rotated in synchronization with the rotation of the main barrel.
When the spiral groove is arranged on the wall of the main lens cone: as shown in fig. 5-7, a sleeve 70 is fixed in the casing 10, a straight groove 80 parallel to the axial direction of the main lens barrel 20 is arranged on the inner wall of the sleeve 70, and the straight groove can penetrate through the inner wall of the sleeve or can be of a set depth (the depth is smaller than the wall thickness of the sleeve), and the length of the straight groove along the axial direction of the main lens barrel is more than or equal to the adjustment distance required by focusing of the movable lens barrel; the main lens barrel 20 is arranged in the sleeve 70, a spiral groove 90 extending along the axial direction of the main lens barrel 20 is arranged on the wall of the main lens barrel 20, the spiral groove penetrates through the wall of the main lens barrel, and the length of the spiral groove is more than or equal to the adjustment distance required by focusing of the movable lens barrel; a pin 31 is fixed to the wall of the moving barrel 30, and the pin 31 extends out of the spiral groove 90 of the main barrel 20 and is inserted into the straight groove 80. In the above embodiment of the present utility model, the main barrel is driven to rotate by directly pulling the part of the main barrel extending out of the barrel mounting opening or by pulling the focusing wheel connected with the main barrel, and the pin and the moving barrel perform different linear movements (far from or near to the end of the main barrel near to the subject) according to the different rotation directions of the main barrel due to the driving action of the spiral groove of the main barrel on the pin, thereby achieving focusing. The straight groove (positioned on the sleeve) is used for realizing the guiding of the pin and avoiding the synchronous rotation of the pin and the moving lens barrel along with the rotation of the main lens barrel. Compared with the scheme that the spiral groove is formed in the inner wall of the sleeve, the movable lens barrel of the embodiment only performs linear motion along the axial direction of the main lens barrel when the main lens barrel rotates, and when the lens of the movable lens barrel is stained with dust and imaging dead spots on the imaging element are caused, the position of the dead spots is fixed at a certain fixed position of an image, so that the dead spots can be repaired or later processed more easily.
In order to further improve the sealing and waterproof performance of the housing, the above embodiment of the present utility model can be further improved as follows: as shown in fig. 3, a seal ring, specifically, a first seal ring 101, is provided between the sleeve 70 and the main barrel 20. Because the relative movement can take place between the main lens barrel and the sleeve pipe when rotatory, the gap between main lens barrel and the sleeve pipe is the inside main way that outside pollutant entered into the casing, through the setting of first sealing washer, can make first sealing washer compressed tightly between main lens barrel and sleeve pipe, realizes sealedly. In order to prevent the first sealing ring from shifting or deforming to cause sealing failure, a mounting groove for mounting the first sealing ring is formed in the outer wall of the main lens barrel or the inner wall of the movable sleeve. In the embodiment shown in fig. 3, the focusing wheel comprises a disc body and a collar vertically connected to one side of the disc body, which collar can be inserted into the sleeve with the main barrel portion, and in order to further achieve a seal between the focusing wheel and the sleeve, a second sealing ring 102 is arranged between the collar of the focusing wheel and the sleeve. In the embodiment shown in fig. 3, a third sealing ring 103 is further included, which third sealing ring 103 is arranged between the sleeve and the housing, but it is of course also possible to achieve a seal by arranging a sealing glue between the sleeve and the housing.
The second embodiment does not include the sleeve of the first embodiment, thereby enabling the overall structure of the surgical imaging device to be simpler. The specific surgical imaging device includes: the imaging device comprises a housing 10, a main lens barrel 20, an imaging element 40 and a moving lens barrel 30, wherein the housing 10 is provided with a lens barrel mounting opening for mounting the lens barrel; the main barrel is mounted with a lens or a lens group for imaging a subject, and the main barrel 20 is mounted in the barrel mounting opening so as to be rotatable in the circumferential direction; an imaging element 40 is mounted in the housing 10, the imaging element 40 being for imaging of a subject; the moving barrel 30 is at least partially installed in the main barrel 20; the moving cylinder 30 is driven to move in the axial direction of the main cylinder 20 by rotating the main cylinder 20 to achieve focusing of the subject on the imaging element 40. One of the inner wall of the housing 10 and the main barrel 20 is provided with a spiral groove 90 extending in the axial direction of the main barrel 20; the other is provided with a straight groove 80 parallel to the axial direction of the main lens barrel 20; the pin 31 is fixed on the wall of the moving lens barrel 30, and the pin 31 is driven by the spiral groove to move linearly along the straight groove 80 when the main lens barrel rotates, so that focusing is realized.
The helical groove is arranged on the inner wall of the shell: the inner wall of the shell 10 is provided with a spiral groove 90 extending along the axial direction of the main lens barrel 20, the depth of the spiral groove is smaller than the wall thickness of the shell, and the length of the spiral groove along the axial direction of the main lens barrel is required to be larger than or equal to the adjustment distance of the movable lens barrel; the wall of the main lens barrel 20 is provided with a straight groove 80 parallel to the axial direction of the main lens barrel 20, the straight groove penetrates through the wall of the main lens barrel, and the length of the straight groove is required to be more than or equal to the adjustment distance of the movable lens barrel; a pin 31 is fixed to the wall of the moving barrel 30, and the pin 31 extends out of the straight groove 80 of the main barrel 20 and is inserted into the spiral groove 90. In the above embodiment of the present utility model, the pin and the moving barrel are driven to rotate by the main barrel by directly stirring the part of the main barrel extending out of the barrel mounting opening or by stirring the focusing wheel connected with the main barrel, and the pin can perform different linear movements (far from or near to one end of the main barrel near to the subject) according to different rotation directions of the main barrel due to the guiding action of the spiral groove of the housing on the pin due to the limiting action of the straight groove, thereby realizing focusing. In the present embodiment, the moving barrel is rotated in synchronization with the rotation of the main barrel.
When the spiral groove is arranged on the wall of the main lens cone: the inner wall of the shell 10 is provided with a straight groove 80 parallel to the axial direction of the main lens barrel 20, the depth of the straight groove is smaller than the wall thickness of the shell, and the length of the straight groove along the axial direction of the main lens barrel is required to be larger than or equal to the adjustment distance of the movable lens barrel; the wall of the main lens barrel 20 is provided with a spiral groove 90 extending along the axial direction of the main lens barrel 20, the spiral groove penetrates through the wall of the main lens barrel, and the length of the spiral groove is more than or equal to the adjustment distance of the movable lens barrel; a pin 31 is fixed to the wall of the moving barrel 30, and the pin 31 extends out of the spiral groove 90 of the main barrel 20 and is inserted into the straight groove 80. In the above embodiment of the present utility model, the main barrel is driven to rotate by directly pulling the part of the main barrel extending out of the barrel mounting opening or by pulling the focusing wheel connected with the main barrel, and the pin and the moving barrel perform different linear movements (far from or near to the end of the main barrel near to the subject) according to the different rotation directions of the main barrel due to the driving action of the spiral groove of the main barrel on the pin, thereby achieving focusing. The straight groove (positioned on the inner wall of the shell) is used for guiding the pin, so that the pin and the moving lens barrel are prevented from synchronously rotating along with the rotation of the main lens barrel. Compared with the scheme that the spiral groove is formed in the inner wall of the shell, the movable lens barrel of the embodiment only performs linear motion along the axial direction of the main lens barrel when the main lens barrel rotates, and when the lens of the movable lens barrel is stained with dust and imaging dead spots on the imaging element are caused, the position of the dead spots is fixed at a certain fixed position of an image, so that the dead spots can be repaired or later processed more easily.
In order to further improve the sealing and waterproof performance of the housing, the above embodiment of the present utility model can be further improved as follows: a sealing ring is provided between the housing 10 and the main barrel 20. Because the relative movement can take place between the main lens barrel and the casing when rotatory, the gap between main lens barrel and the casing is the inside main way of entering into the casing of external pollutant, through the setting of first sealing washer, can make first sealing washer compressed tightly between main lens barrel and casing, realizes sealedly. In order to prevent the first sealing ring from shifting or deforming to cause sealing failure, a mounting groove for mounting the first sealing ring is formed in the outer wall of the main lens barrel or the inner wall of the shell. To further achieve sealing between the focusing wheel and the housing, the focusing wheel 50 includes a disc body and a collar vertically connected to one side of the disc body, the collar being insertable into the housing 10 with the main barrel portion, and a second seal ring 102 is provided between the collar of the focusing wheel and the housing.
It should be understood that the above embodiments are only for explaining the present utility model, the protection scope of the present utility model is not limited thereto, and any person skilled in the art should be able to modify, replace and combine the technical solution according to the present utility model and the inventive concept within the scope of the present utility model.
Claims (10)
1. A surgical imaging apparatus, comprising:
a housing provided with a barrel mounting opening;
a main barrel mounted in the barrel mounting opening so as to be circumferentially rotatable;
a moving barrel mounted at least partially within the main barrel;
an imaging element mounted within the housing, the imaging element for imaging of a subject;
the moving lens barrel is driven to move along the axial direction of the main lens barrel by rotating the main lens barrel to realize focusing of a subject on an imaging element,
a pin is fixed on the wall of the moving barrel, and a straight groove which is parallel to the axial direction of the main barrel and fixed relative to the main barrel is arranged in the operation imaging device corresponding to the pin, and the pin penetrates out of the straight groove, so that the moving barrel is prevented from rotating relative to the main barrel.
2. The surgical imaging device according to claim 1, wherein a focusing wheel is mounted at an end of the main barrel near the barrel mounting opening, and the main barrel is rotated by the focusing wheel.
3. The surgical imaging device according to claim 2, wherein a sleeve is fixed in the housing, and a spiral groove extending in the axial direction of the main lens is provided on an inner wall of the sleeve; the main lens barrel is arranged in the sleeve, and a straight groove parallel to the axial direction of the main lens barrel is arranged on the wall of the main lens barrel; the pin penetrates out of the straight groove of the main lens barrel and is inserted into the spiral groove.
4. The surgical imaging device according to claim 2, wherein an inner wall of the housing is provided with a spiral groove extending in an axial direction of the main lens barrel; the cylindrical wall of the main lens cone is provided with a straight groove parallel to the axial direction of the main lens cone, and the pin penetrates out of the straight groove of the main lens cone and is inserted into the spiral groove.
5. The surgical imaging device according to claim 2, wherein a sleeve is fixed in the housing, and a straight groove parallel to the axial direction of the main barrel is provided on the inner wall of the sleeve; the main lens barrel is arranged in the sleeve, and a spiral groove extending along the axial direction of the main lens barrel is formed in the wall of the main lens barrel; the pin penetrates out of the spiral groove of the main lens barrel and is inserted into the straight groove.
6. A surgical imaging device according to claim 3 or claim 5, wherein a first seal ring is provided between the sleeve and the main barrel.
7. The surgical camera device according to claim 6, wherein the focusing wheel includes a disk body and a collar vertically connected to one side of the disk body, the collar being insertable into the sleeve with the main barrel portion, a second seal ring being provided between the collar of the focusing wheel and the sleeve.
8. The surgical imaging device according to claim 2, wherein an inner wall of the housing is provided with a straight groove parallel to an axial direction of the main barrel; the cylinder wall of the main lens cone is provided with a spiral groove extending along the axial direction of the main lens cone; the pin penetrates out of the spiral groove of the main lens barrel and is inserted into the straight groove.
9. A surgical imaging device according to claim 4 or 8, wherein a first seal ring is provided between the housing and the main barrel.
10. The surgical camera device of claim 9, wherein the focusing wheel comprises a disc body and a collar vertically attached to one side of the disc body, the collar being insertable into the housing with the main barrel portion, a second seal being disposed between the collar of the focusing wheel and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320571785.2U CN219802462U (en) | 2023-03-22 | 2023-03-22 | Operation camera device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320571785.2U CN219802462U (en) | 2023-03-22 | 2023-03-22 | Operation camera device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219802462U true CN219802462U (en) | 2023-10-03 |
Family
ID=88157985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320571785.2U Active CN219802462U (en) | 2023-03-22 | 2023-03-22 | Operation camera device |
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| CN (1) | CN219802462U (en) |
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